Use the digits from 1 up to 9 and make 100.

Follow the rules.
=> Each digit should be used only once.
=> You can only use addition.
=> For making a number, two single digits can be combined (for example, 4 and 2 can be combined to form 42 or 24)
=> A fraction can also be made by combining the two single digits (for example, 4 and 2 can be combined to form 4/2 or 2/4)

Question: how can we do this?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

What number do you get when you multiply all of the numbers on a telephone's number pad?

Give it food and it will live; give it water and it will die.

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

Why are televisions attracted to people?

Which point will the car reach to go out?

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?